102102012011 has 4 divisors (see below), whose sum is σ = 102836559000. Its totient is φ = 101367465024.

The previous prime is 102102012007. The next prime is 102102012037. The reversal of 102102012011 is 110210201201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110210201201 = 28669 ⋅3844229.

It is a cyclic number.

It is not a de Polignac number, because 102102012011 - 2² = 102102012007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102102011983 and 102102012001.

It is not an unprimeable number, because it can be changed into a prime (102102012511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 367273286 + ... + 367273563.

It is an arithmetic number, because the mean of its divisors is an integer number (25709139750).

Almost surely, 2^102102012011 is an apocalyptic number.

102102012011 is a deficient number, since it is larger than the sum of its proper divisors (734546989).

102102012011 is an equidigital number, since it uses as much as digits as its factorization.

102102012011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734546988.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 102102012011 its reverse (110210201201), we get a palindrome (212312213212).

The spelling of 102102012011 in words is "one hundred two billion, one hundred two million, twelve thousand, eleven".